isomer
Americannoun
-
Chemistry. a compound displaying isomerism with one or more other compounds.
-
Also called nuclear isomer. Physics. a nuclide that exhibits isomerism with one or more other nuclides.
noun
-
chem a compound that exhibits isomerism with one or more other compounds
-
physics a nuclide that exhibits isomerism with one or more other nuclides
-
Chemistry Any of two or more substances that have the same molecular formula but differ in their connectivity or spatial arrangement of atoms, or in their topology in macromolecules.
-
Physics Any of two or more nuclei with the same mass number and atomic number that have different radioactive properties and can exist in any of several energy states for a measurable period of time.
Other Word Forms
Derived Forms
Etymology
Origin of isomer
First recorded in 1865–70; back formation from isomeric
Compare meaning
How does isomer compare to similar and commonly confused words? Explore the most common comparisons:
Vocabulary lists containing isomer
Chemistry - High School
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Organic Chemistry
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Nuclear Processes
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
